PNC Financial Services traces its history to the Pittsburgh Trust and Savings Company which was founded in Pittsburgh, Pennsylvania in 1852. In 1858 the company located its corporate offices at the corner of Fifth Avenue and Wood Street in Pittsburgh where they remain to this day. By 1959, after a series of mergers, the Pittsburgh Trust and Savings Company had evolved into the Pittsburgh National Corporation. Another branch of the current bank, the Philadelphia based Provident National Corporation, dates to the mid-19th century.